Convert the sentence provided below from its passive voice structure to an active voice structure:
The construction is alleged to have been halted due to environmental violations.

Correct option is C

The correct active voice of the given sentence is (c) The authorities are alleged to have halted the construction.
Explain the rules of conversion (Passive → Active) with structure:
The original sentence uses a reporting-passive structure:
· “is alleged to have been halted” = passive reporting + perfect infinitive passive.
· To convert it to active while keeping the same meaning:
1. Choose a logical agent/doer (implied actor): the authorities.
2. Convert passive infinitive: to have been halted → to have halted.
3. Keep the reporting verb passive form to preserve meaning: are alleged.
4. Structure:
· Passive: Subject + is/are alleged + to have been + V³
· Active: Agent + is/are alleged + to have + V³ + Object
· Example: The policy is believed to have been framed hastily. → Officials are believed to have framed the policy hastily.
Why other options are incorrect:
· (a) Still keeps “It is alleged…” (acceptable style), but the best active reframe in the given options is (c) because it directly makes the agent the subject while keeping “are alleged to have…”.
· (b) Drops the careful reporting structure “are alleged to have” and changes tense/nuance.
· (d) Changes meaning illogically: “violation halted construction” (violation is a cause, not an agent).